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CVE-2026-109257GHSA-2hhg-8xx6-v73w

FreeRDP before 3.32.0 Double Free via NSCodec plane growth failure

FreeRDP FreeRDP
Open in ThreatlineRecord JSON
CVSS
8.2High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 15 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.32%Chance of exploitation activity in the next 30 days, higher than 23% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.32.0Fixed versionCVE List
Published12 Oct 2026Updated 15 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

FreeRDP before 3.32.0 contains a double-free vulnerability in nsc_context_initialize_encode() that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the server during context teardown.

Text from CVE List

Affected versions 2

  • FreeRDPaffected: all versions before 3.32.0CVE List
  • FreeRDPunaffected: 3.32.0CVE List

References 2